Chlorophyll retention

Negi, P.S. and Roy, S.K. 2000. Effect of blanching and drying methods on p-carotene, ascorbic acid and chlorophyll retention on leafy vegetables. Lebensm.-Wiss. U.-Technol. 33 295-298. 

Figure 7. Influence of Ag (10 ppm), C02 (10% ), and AVG (O.lmM) on chlorophyll retention in aging tobacco leaf disks senesing in the dark for six days...

Since the discovery of cytokinins, different adenylate and non-adenylate compounds have been synthesized and classified as potent anticytokinins based on the reduction of cytokinin effects, i.e. chlorophyll retention, radish leaf expansion and callus growth. 

Chlorophyll retention In cooked vegetables was reported by Sweeney and Martin (14) to vary with tissue pH levels. Spinach with an Initial tissue pH of 6.8 retained over 60% of Its original chlorophyll content after boiling In water for 20 minutes. 

Brussels sprouts with a pH of 6.3 retained less than 30% of their Initial chlorophyll after the same treatment. Chlorophyll retention In green beans was 41% greater when boiled In citrate-phosphate buffer with a pH value of 6.9 Instead of water. 

Buckle and Edwards (44) reported that chlorophyll retention in pea puree processed at temperatures between 116° and 149°C (F0 =... 

Table 8.5 The effect of steam blanching and drying temperature on chlorophyll retention in basil leaves...

ABA is antagonistic to the chlorophyll-sparing effect of kinetin in detached leaves, i.e., kinetin retards chlorophyll degradation and, at high concentrations, overcomes the promotive effect of ABA (Back and Richmond 1971). The effect of GA on chlorophyll retention is also opposite to that of ABA. In this case, however, the hormones appear not to act antagonistically, i.e., the ABA effects are not overcome be elevated levels of GA (Back and Richmond 1971). Other examples of nonantagonistic opposite effects of hormones include the interaction... 

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